Hillside School is a Grade 4-9 Day and Boarding School for boys located in Marlborough, Massachusetts. Hillside School provides a structured, supportive, and challenging academic environment for boys in grades 4-9. Boarding and day students enjoy a rich curriculum that includes a vibrant visual and performing arts program and competitive athletics. The School's unique academic and leadership program, "Shades of Blue," builds character, while holding our students accountable to our core values. Our community is our hallmark.